spfilt.m ( File view )

  • By yueqiaohuayuan 2014-11-17
  • View(s):3508
  • Download(s):7
  • Point(s): 3
			function f = spfilt(g, type, m, n, parameter)
%SPFILT Performs linear and nonlinear spatial filtering.
%   F = SPFILT(G, TYPE, M, N, PARAMETER) performs spatial filtering
%   of image G using a TYPE filter of size M-by-N. Valid calls to
%   SPFILT are as follows: 
%
%     F = SPFILT(G, 'amean', M, N)       Arithmetic mean filtering.
%     F = SPFILT(G, 'gmean', M, N)       Geometric mean filtering.
%     F = SPFILT(G, 'hmean', M, N)       Harmonic mean filtering.
%     F = SPFILT(G, 'chmean', M, N, Q)   Contraharmonic mean
%                                        filtering of order Q. The
%                                        default is Q = 1.5.
%     F = SPFILT(G, 'median', M, N)      Median filtering.
%     F = SPFILT(G, 'max', M, N)         Max filtering.
%     F = SPFILT(G, 'min', M, N)         Min filtering.
%     F = SPFILT(G, 'midpoint', M, N)    Midpoint filtering.
%     F = SPFILT(G, 'atrimmed', M, N, D) Alpha-trimmed mean filtering.
%                                        Parameter D must be a
%                                        nonnegative even integer;
%                                        its default value is D = 2.
%
%   The default values when only G and TYPE are input are M = N = 3,
%   Q = 1.5, and D = 2. 

%   Copyright 2002-2004 R. C. Gonzalez, R. E. Woods, & S. L. Eddins
%   Digital Image Processing Using MATLAB, Prentice-Hall, 2004
%   $Revision: 1.6 $  $Date: 2003/10/27 20:07:00 $

% Process inputs.
if nargin == 2
   m = 3; n = 3; Q = 1.5; d = 2;
elseif nargin == 5
   Q = parameter; d = parameter;
elseif nargin == 4
   Q = 1.5; d = 2;
else 
   error('Wrong number of inputs.');
end

% Do the filtering.
switch type
case 'amean'
   w = fspecial('average', [m n]);
   f = imfilter(g, w, 'replicate');
case 'gmean'
   f = gmean(g, m, n);
case 'hmean'
   f = harmean(g, m, n);
case 'chmean'
   f = charmean(g, m, n, Q);
case 'median'
   f = medfilt2(g, [m n], 'symmetric');
case 'max'
   f = ordfilt2(g, m*n, ones(m, n), 'symmetric');
case 'min'
   f = ordfilt2(g, 1, ones(m, n), 'symmetric');
case 'midpoint'
   f1 = ordfilt2(g, 1, ones(m, n), 'symmetric');
   f2 = ordfilt2(g, m*n, ones(m, n), 'symmetric');
   f = imlincomb(0.5, f1, 0.5, f2);
case 'atrimmed'
   if (d <= 0) | (d/2 ~= round(d/2))
      error('d must be a positive, even integer.')
   end
   f = alphatrim(g, m, n, d);
otherwise
   error('Unknown filter type.')
end

%-------------------------------------------------------------------%
function f = gmean(g, m, n)
%  Implements a geo
...
...
(Please download the complete source code to view)
			
...
Expand> <Close

Want complete source code? Download it here

Point(s): 3

Download
0 lines left, continue to read
Sponsored links

File list

Tips: You can preview the content of files by clicking file names^_^
Name Size Date
01.97 kB
0_Read_Me_First.txt5.00 kB2012-02-29|09:51
Contents.m5.98 kB2012-02-29|09:51
Readme.m5.30 kB2012-02-29|09:51
adpmedian.m1.54 kB2012-02-29|09:51
average.m651.00 B2012-02-29|09:51
bayesgauss.m2.96 kB2012-02-29|09:51
bound2eight.m2.99 kB2012-02-29|09:51
bound2four.m2.42 kB2012-02-29|09:51
bound2im.m2.17 kB2012-02-29|09:51
boundaries.m5.64 kB2012-02-29|09:51
bsubsamp.m3.87 kB2012-02-29|09:51
changeclass.m592.00 B2012-02-29|09:51
colorgrad.m2.30 kB2012-02-29|09:51
colorseg.m2.37 kB2012-02-29|09:51
compare.m1.15 kB2012-02-29|09:51
connectpoly.m1.02 kB2012-02-29|09:51
conwaylaws.m799.00 B2012-02-29|09:51
covmatrix.m977.00 B2012-02-29|09:51
dftcorr.m687.00 B2012-02-29|09:51
dftfilt.m882.00 B2012-02-29|09:51
dftuv.m736.00 B2012-02-29|09:51
diameter.m6.47 kB2012-02-29|09:51
endpoints.m874.00 B2012-02-29|09:51
entropy.m1.00 kB2012-02-29|09:51
fchcode.m8.55 kB2012-02-29|09:51
frdescp.m1.42 kB2012-02-29|09:51
fwtcompare.m992.00 B2012-02-29|09:51
gmean.m447.00 B2012-02-29|09:51
gscale.m2.04 kB2012-02-29|09:51
histroi.m920.00 B2012-02-29|09:51
hough.m2.64 kB2012-02-29|09:51
houghlines.m2.82 kB2012-02-29|09:51
houghpeaks.m2.65 kB2012-02-29|09:51
houghpixels.m1.02 kB2012-02-29|09:51
hpfilter.m1.23 kB2012-02-29|09:51
hsi2rgb.m1.94 kB2012-02-29|09:51
huff2mat.m2.46 kB2012-02-29|09:51
huffman.m2.82 kB2012-02-29|09:51
ice.fig45.71 kB2012-02-29|09:51
ice.m26.30 kB2012-02-29|09:51
ice_stand_alone.m46.55 kB2012-02-29|09:51
ifrdescp.m1.38 kB2012-02-29|09:51
ifwtcompare.m1.12 kB2012-02-29|09:51
im2jpeg.m2.90 kB2012-02-29|09:51
im2jpeg2k.m3.97 kB2012-02-29|09:51
imnoise2.m4.20 kB2012-02-29|09:51
imnoise3.m2.12 kB2012-02-29|09:51
improd.m791.00 B2012-02-29|09:51
imratio.m1.30 kB2012-02-29|09:51
imstack2vectors.m1.83 kB2012-02-29|09:51
intline.m1.20 kB2012-02-29|09:51
intrans.m3.25 kB2012-02-29|09:51
invmoments.m3.24 kB2012-02-29|09:51
jpeg2im.m2.41 kB2012-02-29|09:51
jpeg2k2im.m1.90 kB2012-02-29|09:51
lpc2mat.m1.42 kB2012-02-29|09:51
lpfilter.m1.44 kB2012-02-29|09:51
mahalanobis.m1.97 kB2012-02-29|09:51
manualhist.m1.75 kB2012-02-29|09:51
mat2huff.m2.75 kB2012-02-29|09:51
mat2lpc.m1.28 kB2012-02-29|09:51
minperpoly.m7.15 kB2012-02-29|09:51
paddedsize.m1.29 kB2012-02-29|09:51
pixeldup.m950.00 B2012-02-29|09:51
polyangles.m6.14 kB2012-02-29|09:51
princomp.m2.88 kB2012-02-29|09:51
quantize.m1.33 kB2012-02-29|09:51
randvertex.m1.15 kB2012-02-29|09:51
regiongrow.m1.66 kB2012-02-29|09:51
rgb2hsi.m1.46 kB2012-02-29|09:51
rgbcube.m1.98 kB2012-02-29|09:51
signature.m4.45 kB2012-02-29|09:51
specxture.m2.57 kB2012-02-29|09:51
spfilt.m3.78 kB2012-02-29|09:51
splitmerge.m4.13 kB2012-02-29|09:51
statmoments.m1.72 kB2012-02-29|09:51
statxture.m1.55 kB2012-02-29|09:51
strsimilarity.m1.78 kB2012-02-29|09:51
subim.m713.00 B2012-02-29|09:51
twodsin.m1.04 kB2012-02-29|09:51
twomodegauss.m1.16 kB2012-02-29|09:51
unravel.dll7.00 kB2012-02-29|09:51
unravel.m967.00 B2012-02-29|09:51
unravel.mexaxp24.00 kB2012-02-29|09:51
unravel.mexglx18.97 kB2012-02-29|09:51
unravel.mexhpux12.00 kB2012-02-29|09:51
unravel.mexmac8.68 kB2012-02-29|09:51
unravel.mexrs62.71 kB2012-02-29|09:51
unravel.mexsg24.44 kB2012-02-29|09:51
unravel.mexsol8.54 kB2012-02-29|09:51
vistformfwd.m1.66 kB2012-02-29|09:51
wave2gray.m4.67 kB2012-02-29|09:51
waveback.m4.52 kB2012-02-29|09:51
wavecopy.m940.00 B2012-02-29|09:51
wavecut.m1.06 kB2012-02-29|09:51
wavefast.m4.14 kB2012-02-29|09:51
wavefilter.m4.77 kB2012-02-29|09:51
wavepaste.m1.04 kB2012-02-29|09:51
wavework.m3.45 kB2012-02-29|09:51
wavezero.m696.00 B2012-02-29|09:51
x2majoraxis.m3.59 kB2012-02-29|09:51
...
Sponsored links

spfilt.m (160.12 kB)

Need 3 point
Your Point(s)

Your Point isn't enough.

Get point immediately by PayPal

More(Debit card / Credit card / PayPal Credit / Online Banking)

Submit your source codes. Get more point

LOGIN

Don't have an account? Register now
Need any help?
Mail to: support@codeforge.com

切换到中文版?

CodeForge Chinese Version
CodeForge English Version

Where are you going?

^_^"Oops ...

Sorry!This guy is mysterious, its blog hasn't been opened, try another, please!
OK

Warm tip!

CodeForge to FavoriteFavorite by Ctrl+D